[jasonhoch]

Another comment mentioned that using a word with multiple meanings increases confusion.

I would argue that "writing" can mean "writing the tool" as well as "writing the art form." PG is talking about "writing the tool."

Confusingly, both the tool and the art form can convey ideas.

Certain ideas can be conveyed better by art ("a picture is worth a thousand words"). Visual art is typically more accessible than complex prose, but all forms of art can reach levels of inaccessibility that are frustrating to those not "in the know."